Emulsion composition

Abstract

To provide a water-in-oil emulsion composition that does not cause slipperiness on skin during application, shows intimate contact with the skin after application, can sufficiently cover pores, and has reduced stickiness.SOLUTION: An emulsion composition contains following components (A), (B), (C) and (D): (A) a lipophilic nonionic surfactant, (B) phenyl silicone oil, (C) carbonate, and (D) water.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an emulsion composition. [Background technology]

[0002] In makeup cosmetics such as foundation, the cosmetics need to be firmly attached to the skin in order to cover pores. For example, Patent Document 1 describes that a composite powder consisting of silicone rubber particles whose surfaces are coated with silicone resin, and a water-in-oil emulsion cosmetic containing a non-volatile oil agent other than silicone oil, makes the skin look brighter, has excellent spreadability and adhesion, and is effective in hiding pores. On the other hand, sunscreen cosmetics containing carbonates are known. For example, Patent Document 2 describes a sunscreen cosmetic composition containing an inorganic UV scattering agent made of a hydrophobic fine metal oxide particle, tubular basic magnesium carbonate, and oil, and Patent Document 3 describes a cosmetic composition having UV-A and / or UV-B protection, which contains at least one inorganic UV filter and surface-reacted calcium carbonate. In these cosmetic compositions, the ultraviolet protection effect is improved by using carbonates. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-172872 A [Patent Document 2] JP 2011-236182 A [Patent Document 3] Special Publication No. 2020-506953 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional emulsion cosmetics tend to slip on the skin when applied, making it difficult to feel that the cosmetics are fully attached to the skin, and also have poor adhesion to pores, making it impossible to cover pores sufficiently.Another issue is that the cosmetics leave a sticky feeling on the skin after application. [Means for solving the problem]

[0005] The present inventors have discovered that an emulsion composition which overcomes the above-mentioned problems can be obtained by using a combination of a lipophilic nonionic surfactant, a phenyl silicone oil, and a carbonate.

[0006] The present invention comprises the following components (A), (B), (C) and (D): (A) a lipophilic nonionic surfactant, (B) phenyl silicone oil, (C) carbonate, (D)Water The present invention relates to an emulsion composition comprising the above-mentioned compound. Effect of the Invention

[0007] The emulsion composition of the present invention reduces the slippery feeling when applied, improves the adhesion to the skin after application, and can sufficiently cover pores, while reducing the sticky feeling on the skin after application. The term "slippery feeling" refers to the feeling that when the water-in-oil emulsion cosmetic is applied to the face using the fingertips or the like, it spreads over the skin indefinitely, as if a liquid oil were being spread, and there is no real feeling that the water-in-oil emulsion cosmetic is spreading while adhering to the skin. The term "adherence" refers to the fact that the water-in-oil emulsion composition on the skin after application follows the movement of the skin even when the facial skin is moved, such as by changing facial expressions, but does not come off from the surface of the skin, and that the cosmetic is firmly attached without being partially gathered due to wrinkles or fine wrinkles. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The lipophilic nonionic surfactant of component (A) used in the present invention preferably has an HLB of 1 to 8, more preferably 2 to 7, and even more preferably 3 to 6, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin after application, and obtaining a stable emulsion composition. Here, HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of the surfactant, and is calculated by Griffin's formula. When a surfactant is composed of two or more nonionic surfactants, the HLB of the mixed surfactant is calculated as follows. The HLB of the mixed surfactant is the phase arithmetic average of the HLB values ​​of each nonionic surfactant based on their blending ratio. Mixed HLB=Σ(HLBx×Wx) / ΣWx HLBx indicates the HLB value of nonionic surfactant X. Wx denotes the mass (g) of the nonionic surfactant X having a value of HLBx.

[0009] Examples of the lipophilic nonionic surfactant of component (A) include sorbitan fatty acid esters such as glycerin fatty acid esters, propylene glycol fatty acid esters, sorbitan monoisostearate, sorbitan monooleate, sorbitan sesquistearate, and sorbitan sesquioleate, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene hydrogenated castor oil fatty acid esters, polyethylene glycol fatty acid esters, alkyl glyceryl ethers, alkyl polyglyceryl ethers, polyoxyethylene alkyl ethers, polyoxyethylene alkyl ether fatty acid esters, polyoxyethylene alkylamines, polyether-modified silicones such as polyoxyethylene-methylpolysiloxane copolymers and poly(oxyethylene-oxypropylene)methylpolysiloxane copolymers, alkyl-modified polyether-modified silicones, and silicone surfactants such as alkyl chain-co-modified polyether-modified silicones. Among these, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application, improving the adhesion to the skin after application, and obtaining a stable emulsion composition, it is preferable to contain at least one or more types selected from sorbitan fatty acid esters and silicone-based surfactants, more preferably to contain at least one or more types selected from sorbitan fatty acid esters and polyether-modified silicones, even more preferably to contain at least one or more types selected from sorbitan monoisostearate, sorbitan monooleate, sorbitan sesquistearate, and polyether-modified silicones, and even more preferably to contain at least one or more types selected from sorbitan monoisostearate and polyoxyethylene-methylpolysiloxane copolymers. It is also preferable to use a sorbitan fatty acid ester and a silicone surfactant in combination.

[0010] As the lipophilic nonionic surfactant of component (A), commercially available products can be used. For example, sorbitan monoisostearate such as Span 120 (HLB 4.7) (manufactured by Croda) and the like; polyoxyethylene-methylpolysiloxane copolymers such as KF-6015 (HLB 4.5), KF-6017 (HLB 4.5), KF-6028 (HLB 4) (all manufactured by Shin-Etsu Chemical Co., Ltd.), SH3775M (HLB 5) (manufactured by Dow Corning Toray Co., Ltd.) and the like; poly(oxyethylene-oxypropylene)-methylpolysiloxane copolymers such as KF-6012 (HLB 7) (manufactured by Shin-Etsu Chemical Co., Ltd.), DOWSIL BY 22-008 M (HLB 2), ES-5226 DM formulation Examples of alkyl-modified polyether-modified silicones include KF-6038 (HLB3) (manufactured by Shin-Etsu Chemical Co., Ltd.) and ABIL EM 90 (HLB5) (manufactured by Evonik Co., Ltd.).

[0011] The lipophilic nonionic surfactant of component (A) may be used alone or in combination with two or more kinds, and from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application, improving the adhesion to the skin after application, and obtaining a stable water-in-oil emulsion composition, the content is preferably 1 to 8 mass %, more preferably 1.5 to 6.5 mass %, and even more preferably 2 to 5.5 mass % of the total composition.

[0012] The phenyl silicone oil of component (B) is preferably a phenyl-modified silicone that is liquid at 25° C. Liquid means that the viscosity at 25° C. is 4000 mPa·s or less. The viscosity at 25°C of the phenyl-modified silicone that is liquid at 25°C is preferably 600 mPa·s or less, more preferably 200 mPa·s or less, and even more preferably 50 mPa·s or less. Here, the viscosity is measured using a B-type viscometer (TVB-10 model, manufactured by Toki Sangyo Co., Ltd.), rotor No. 4, 60 rpm, and 60 seconds.

[0013] Examples of phenyl-modified silicones that are liquid at 25° C. include phenyl trimethicone, diphenylsiloxyphenyl trimethicone, methylphenyl polysiloxane, diphenyl dimethicone, trimethylsiloxyphenyl dimethicone, and trimethylpentaphenyl trisiloxane. Among these, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin during application, improving the adhesion to the skin and the ability to cover pores after application, and reducing a sticky feeling, it is preferable to contain at least one or two or more selected from methylphenylpolysiloxane, phenyltrimethicone, diphenyldimethicone, and trimethylpentaphenyltrisiloxiane, more preferably to contain at least one or two or more selected from methylphenylpolysiloxane, diphenyldimethicone, and trimethylpentaphenyltrisiloxiane, and even more preferably methylphenylpolysiloxane.

[0014] Examples of the component (B) that can be used include commercially available products such as SH556 Fluid (manufactured by Dow Corning Toray Co., Ltd.) as phenyl trimethicone; KF-56A (manufactured by Shin-Etsu Chemical Co., Ltd.) as diphenylsiloxyphenyl trimethicone; DOWSIL FZ-209 (manufactured by Dow Toray Co., Ltd.) as methylphenyl polysiloxane; KF-50 (manufactured by Shin-Etsu Chemical Co., Ltd.), KF-53 (manufactured by Shin-Etsu Chemical Co., Ltd.), and KF-54P (manufactured by Shin-Etsu Chemical Co., Ltd.) as diphenyl dimethicone; PDM-1000 (manufactured by Wacker Asahi Kasei Silicone Co., Ltd.) as trimethylsiloxyphenyl dimethicone; and PH-1555 HRI Cosmetic Fluid (manufactured by Dow Corning Toray Co., Ltd.) as trimethylpentaphenyl trisiloxane.

[0015] Component (B) may be used alone or in combination with two or more kinds, and from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application, improving the adhesion to the skin and pore-covering power after application, and reducing a sticky feeling, the content is preferably 0.5 to 10 mass %, more preferably 0.8 to 7 mass %, and even more preferably 2 to 5 mass % of the total composition.

[0016] The carbonate of component (C) is preferably a bivalent metal carbonate, for example, calcium carbonate, magnesium carbonate, barium carbonate, etc. Among these, from the viewpoint of reducing the slippery feeling of the water-in-oil emulsion composition on the skin when applied, improving the skin's adhesion and pore covering power after application, it is preferable to contain at least one or more selected from calcium carbonate and magnesium carbonate, and calcium carbonate is more preferable. In addition, from the viewpoint of reducing the sticky feeling of the skin after application, it is preferable to contain at least one or more selected from calcium carbonate and magnesium carbonate, and magnesium carbonate is more preferable. Furthermore, from the viewpoint of reducing the slippery feeling of the water-in-oil emulsion composition on the skin when applied, improving the skin's adhesion and pore covering power after application, and reducing the sticky feeling, it is preferable to use calcium carbonate and magnesium carbonate in combination. The carbonate of component (C) is used alone. When it is used as a surface treatment agent for powder or as a composite powder raw material, the carbonate does not exist alone in the composition, and therefore the effect of the present invention cannot be obtained.

[0017] The shape of the carbonate of component (C) is not limited, and may be any of spindle-like, rod-like, spherical, plate-like, needle-like, fibrous, petal-like, and the like. The shape of the carbonate of component (D) is preferably spindle-shaped, rod-shaped, plate-shaped, needle-shaped, fibrous, or petal-shaped, more preferably spindle-shaped, rod-shaped, plate-shaped, needle-shaped, or fibrous, and even more preferably spindle-shaped, rod-shaped, or plate-shaped, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin and the covering power for pores after application, and reducing a sticky feeling.

[0018] In addition, the volume average particle diameter of the carbonate is preferably 0.1 to 50 μm, more preferably 1 to 30 μm, and even more preferably 6 to 20 μm, from the viewpoints of reducing the slippery feeling of the water-in-oil emulsion composition on the skin when applied, improving the adhesion to the skin and the covering power for pores after application, and reducing the sticky feeling. Furthermore, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin during application, improving the adhesion to the skin and the ability to cover pores after application, and reducing a sticky feeling, the particle size (aspect ratio) of the major axis relative to the average thickness of the carbonate is preferably 1 to 100, more preferably 1.3 to 50, and even more preferably 1.6 to 30. Here, the volume average particle size is measured by a laser diffraction scattering particle size distribution analyzer (LA-920, manufactured by Horiba, Ltd.) In the present invention, the volume average particle size is the average particle size based on volume, and is defined as the 50% median size. The aspect ratio is calculated from the ratio of the volume average particle size to the average thickness of the particles, and is defined as aspect ratio=(volume average particle size / average thickness). The average particle thickness is determined by taking the number average of the thicknesses of 10 to 50 base particles observed and measured using a scanning electron microscope or a transmission electron microscope.

[0019] As the carbonate of component (C), commercially available products can be used. Examples of calcium carbonate that can be used include light calcium carbonate (manufactured by Omi Chemical Industry Co., Ltd., volume average particle size 7.5 μm, spindle shape, aspect ratio 1.9) and SCS-M5 (manufactured by Sakai Chemical Industry Co., Ltd., volume average particle size 5 μm, spherical, aspect ratio 1), and magnesium carbonate such as heavy magnesium carbonate (manufactured by Kyowa Chemical Industry Co., Ltd., volume average particle size 16 μm, plate shape, aspect ratio 26).

[0020] Component (C) may be used alone or in combination with two or more kinds. From the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application, improving the adhesion to the skin and the ability to cover pores after application, and reducing a sticky feeling, the content is preferably 0.1 to 10 mass %, more preferably 0.5 to 8 mass %, and even more preferably 1.2 to 5 mass % of the total composition.

[0021] In the present invention, the mass ratio (B) / (C) of component (B) to component (C) is preferably 0.1 to 80, more preferably 0.2 to 60, even more preferably 0.3 to 30, and even more preferably 0.4 to 10, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application, improving the adhesion to the skin and the covering power for pores after application, and reducing a sticky feeling.

[0022] In the present invention, the content of water as component (D) is preferably 20 to 80 mass % of the total composition, more preferably 30 to 70 mass %, even more preferably 40 to 60 mass %, and even more preferably 45 to 55 mass %.

[0023] The emulsion composition of the present invention may further contain (E) a coloring pigment. The color pigments are those used in ordinary cosmetics, such as metal oxides such as titanium oxide, zinc oxide, cerium oxide, aluminum oxide, yellow iron oxide, black iron oxide, red ocher, Prussian blue, ultramarine, chromium oxide, and chromium hydroxide, metal complexes such as manganese violet and cobalt titanate, and inorganic pigments such as carbon black; Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 206, Red No. 207, Red No. 209, Red No. 300, Red No. 301, Red No. 302, Red No. 303, Red No. 304, Red No. 305, Red No. 306, Red No. 307, Red No. 309, Red No. 308, Red No. 309, Red No. 310, Red No. 311, Red No. 312, Red No. 313, Red No. 314, Red No. 315, Red No. 316, Red No. 317, Red No. 318, Red No. 319, Red No. 320, Red No. 321, Red No. 322, Red No. 323, Red No. 324, Red No. 325, Red No. 326, Red No. 327, Red No. 328, Red No. 329, Red No. 330, Red No. 331, Red No. 332, Red No. 333, Red No. 334, Red No. 335, Red No. 336, Red No. 337, Red No. 338, Red No. 339, Red No. 339, Red No synthetic organic pigments such as Red No. 20, Red No. 226, Red No. 227, Red No. 228, Red No. 230, Red No. 401, Red No. 405, Red No. 505, Orange No. 203, Orange No. 204, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 401, Blue No. 1, and Blue No. 404; natural organic pigments such as β-carotene, caramel, and paprika color, and composites of these color pigments and composite pigments combining these color pigments with pearl pigments. Examples of the pearl pigments to be treated include natural or synthetic inorganic powders such as mica, phlogopite, silica, sericite, glass, kaolin, bismuth oxychloride, cerium oxide, calcium sulfate, barium sulfate, magnesium sulfate, and plate-like alumina powder. Specific examples of composite pigments include titanium oxide-coated mica, iron oxide-coated mica, iron oxide-coated titanium mica, iron oxide-coated synthetic phlogopite, chromium oxide-coated titanium mica, titanium oxide-coated glass powder, iron oxide-coated glass powder, titanium oxide-containing glass powder, and iron oxide-containing glass powder. Among these, metal oxides are preferred, and it is more preferred to include at least one or more selected from titanium oxide, zinc oxide, yellow iron oxide, black iron oxide, and red iron oxide, and it is even more preferred to include at least one or more selected from titanium oxide, yellow iron oxide, black iron oxide, and red iron oxide.

[0024] These color pigments can be used as they are, or can be used after being subjected to a hydrophobic treatment, such as a surface treatment with a fluorine compound, a silicone treatment, an alkyl treatment, an alkylsilane treatment, a metal soap treatment, a water-soluble polymer treatment, an amino acid treatment, an acylated amino acid treatment, a lecithin treatment, an organic titanate treatment, a polyol treatment, an acrylic resin treatment, a methacrylic resin treatment, or a urethane resin treatment. As the hydrophobic treatment, from the viewpoint of reducing the slippery feeling of the water-in-oil emulsion composition on the skin when applied, improving the skin's adhesion and covering power for pores after application, and reducing the sticky feeling, at least one or more selected from silicone treatment, amino acid treatment, and acylated amino acid treatment are preferred, and at least one or more selected from silicone treatment and acylated amino acid treatment are more preferred. Also, from the viewpoint of reducing the slippery feeling of the water-in-oil emulsion composition on the skin when applied, improving the skin's adhesion and covering power for pores after application, and reducing the sticky feeling of the skin, it is preferred to use a combination of silicone treatment and acylated amino acid treatment. The color pigment can be subjected to a hydrophobic treatment by a conventional method.

[0025] The color pigment of component (E) can be one type or two or more types, and the content is preferably 1 to 20 mass % of the total composition, more preferably 2 to 18 mass %, and even more preferably 6 to 13 mass %, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin and the covering power for pores after application, and reducing a sticky feeling.

[0026] In the present invention, the mass ratio (C) / (E) of component (C) to component (E) is preferably 0.01 to 8, more preferably 0.03 to 4, even more preferably 0.05 to 1, and even more preferably 0.1 to 0.6, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin upon application, improving the adhesion to the skin and the ability to cover pores after application, and reducing a sticky feeling.

[0027] The emulsion composition of the present invention may further contain a film-forming agent, which can reduce the slippery feeling of the water-in-oil emulsion composition on the skin when applied and improve the adhesion to the skin after application. Such film-forming agents include those commonly used in cosmetics, such as fluorine-modified silicone resins, trimethylsiloxysilicate, acrylic silicone resins, and alkylsilsesquioxane resins.

[0028] The fluorine-modified silicone resin may be represented by the following general formula (1): R 1 g SiO (4-g) / 2 (1) (In the formula, R 1 is a hydrocarbon group having 1 to 8 carbon atoms, a phenyl group, a hydroxyl group, or a group represented by the general formula -R 2 -Rf(R 2 represents a divalent alkylene group having 2 to 6 carbon atoms, and Rf represents a perfluoroalkyl group having 1 to 8 carbon atoms), 2 -Rf is an essential functional group, and g is an average number in the range of 1.0≦g≦1.8. 1 may be the same or different) Preferably, the compound has a structure represented by the following formula:

[0029] Such fluorine-modified silicone resins are preferably those labeled as "trifluoroalkyldimethyltrimethylsiloxysilicate" (INCI name: "Trifluoropropyldimethyl / Trimethylsiloxysilicate") in cosmetics, and commercially available products such as XS66-B8226 (50% by mass decamethylcyclopentasiloxane solution) and XS66-B8636 (50% by mass dimethylpolysiloxane (10cs) solution) (both manufactured by Momentive Performance Materials) that have been dissolved in a solvent in advance can be used.

[0030] Trimethylsiloxysilicate is a compound with a crosslinked structure based on a siloxane structure, [(CH3)3SiO 1 / 2 ] S [SiO2] T (S is 1 to 3, T is 0.5 to 8) is preferable.

[0031] As the trimethylsiloxysilicate, the cosmetic label name "trimethylsiloxysilicate" (INCI name "Trimethylsiloxysilicate") is preferred, and commercially available products such as KF-7312T (60% by mass methyltrimethicone solution), KF-7312L (50% dimethylpolysiloxane (2cs) solution), KF-7312J (50% by mass decamethylcyclopentasiloxane solution), and KF-7312K (50% by mass dimethylpolysiloxane (6cs) solution) (all manufactured by Shin-Etsu Chemical Co., Ltd.) that have been dissolved in advance in a solvent can be used.

[0032] Examples of the acrylic silicone resin include vinyl polymers having a carbosiloxane dendrimer structure in the side chain, and acrylic-silicone graft copolymers. Examples of vinyl polymers having a carbosiloxane dendrimer structure in the side chain include those described in JP-A Nos. 11-1530 and 2000-63225.

[0033] As the vinyl polymer having a carbosiloxane dendrimer structure in the side chain, a silicone dendrimer-acrylic copolymer is preferred, and the cosmetic label name "(Acrylates / Polytrimethylsiloxymethacrylate) Copolymer" (INCI name "Acrylates / Polytrimethylsiloxymethacrylate Copolymer") is preferred, and commercially available products such as FA4001CM (30% by mass decamethylcyclopentasiloxane solution), FA4002ID (40% by mass isododecane solution), and DOWSIL FA 4003 DM Silicone Acrylate (40% by mass dimethylpolysiloxane (2cs) solution) (all manufactured by Dow Toray) that have been dissolved in advance in a solvent can be used.

[0034] Examples of the acrylic-silicone graft copolymer include those described in JP-A-2-25411. The acrylic-silicone graft copolymer is preferably one having the cosmetic labeling name "Acrylates / Dimethicone Copolymer" (INCI name "Acrylates / Dimethicone Copolymer"), and commercially available products such as KP545 (30% by mass decamethylcyclopentasiloxane solution), KP549 (40% by mass methyltrimethicone solution), and KP550 (40% by mass isododecane solution) (all manufactured by Shin-Etsu Chemical Co., Ltd.) that have been dissolved in advance in a solvent can be used.

[0035] As the alkylsilsesquioxane resin, for example, those described in JP-A-4-312511 can be used. 3 SiO 1.5 A silanol group-containing organopolysilsesquioxane consisting of units (wherein R 3 represents a substituted or unsubstituted monovalent hydrocarbon group) per 100 parts by mass of (R 4 3Si) a Z (where R 4 represents a substituted or unsubstituted monovalent hydrocarbon group, a represents 1 or 2, and Z represents a hydrogen atom, a hydroxyl group, or a hydrolyzable group when a is 1, or represents -O-, -N(X)-, or -S- when a is 2. Here, X represents a hydrogen atom, a monovalent hydrocarbon group having 1 to 4 carbon atoms, or R 4 3Si-), and 5 to 100 parts by mass of a silicone compound represented by R 3 SiO 1.5 Unit 50-99 mol%, R 4 3SiO 0.5 Examples include silicone resins consisting of 1 to 50 mol % of units. The alkylsilsesquioxane resin is preferably one having the cosmetic labeling name "polypropylsilsesquioxane cyclopentasiloxane" (INCI name "POLYPROPYLSILSESQUIOXANECYCLOPENTASILOXANE"). Commercially available products that can be used include, for example, 670FLUID (manufactured by Dow Toray Industries, Inc.), which is polypropylsilsesquioxane, and DOWSIL MQ-1640 FLAKE RESIN (a mixture of 37% by mass polypropylsilsesquioxane and 63% by mass trimethylsiloxysilicate) (manufactured by Dow Toray Industries, Inc.), which is a mixture of polypropylsilsesquioxane and trimethylsiloxysilicate.

[0036] From the viewpoints of reducing the slippery feeling of the water-in-oil emulsion composition on the skin when applied and improving the adhesion to the skin after application, the film-forming agent preferably contains at least one or more selected from trimethylsiloxysilicate, acrylic silicone resin, and alkylsilsesquioxane resin, more preferably an acrylic silicone resin, and even more preferably a vinyl polymer having a carbosiloxane dendrimer structure in its side chain.

[0037] One or more types of film-forming agents can be used, and the content is preferably 0.1 to 10 mass % of the total composition, more preferably 0.5 to 7 mass %, and even more preferably 1.5 to 4 mass %, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin after application.

[0038] The emulsion composition of the present invention may further contain a volatile oil, which can reduce the slippery feeling of the water-in-oil emulsion composition on the skin when applied. Here, volatility refers to an amount of evaporation of 20% or more at 25° C. for 6 hours, as measured by the following method (1). Method (1): Place a 90mm diameter filter paper in a 120mm diameter glass petri dish, place 1g of sample on the filter paper, and store in a room with 65% RH (25℃). After 6 hours, measure the residue of the sample and calculate the amount of evaporation. The volatile oil may be any oil that is commonly used in cosmetics, and examples of the oil include silicone oil, hydrocarbon oil, and ether oil.

[0039] Examples of silicone oils include linear dimethylpolysiloxane and cyclic dimethylpolysiloxane. The linear dimethylpolysiloxane may be either linear or branched. Examples of linear dimethylpolysiloxane include dimethylpolysiloxane (1.5cs) and dimethylpolysiloxane (2cs), and examples of branched dimethylpolysiloxane include methyltrimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane. Examples of cyclic dimethylpolysiloxane include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane. Examples of the hydrocarbon include isododecane, isotridecane, isohexadecane, light isoparaffin, and light liquid isoparaffin. Examples of the ether oil include ethyl perfluorobutyl ether.

[0040] Of these, from the viewpoint of reducing the slippery feeling of the emulsion composition on the skin when applied, it is preferable to contain at least one or more types selected from silicone oils and hydrocarbon oils, more preferable to contain at least one or more types selected from dimethylpolysiloxane (2cs), decamethylcyclopentasiloxane, isododecane, and light liquid isoparaffin, and even more preferable to contain at least one or more types selected from dimethylpolysiloxane (2cs), decamethylcyclopentasiloxane, and light liquid isoparaffin.

[0041] One or more types of volatile oils can be used, and the content is preferably 1 to 30 mass % of the total composition, more preferably 3 to 20 mass %, and even more preferably 5 to 15 mass %, from the viewpoint of reducing the slippery feeling of the emulsion composition on the skin when applied.

[0042] The emulsion composition of the present invention may further contain a non-volatile oil that is liquid at 25° C., which can reduce the slippery feeling of the emulsion composition on the skin when applied. "Liquid at 25°C" means that the viscosity at 25°C is 10,000 mPa s or less. Here, the viscosity is measured using a B-type viscometer (TVB-10M, manufactured by Toki Sangyo Co., Ltd.), rotor No. 4, 60 rpm, 60 seconds. Moreover, the term "non-volatile" refers to a material whose evaporation amount at 25°C for 6 hours is less than 20%, as measured by the following method (1). Method (1): Place a 90mm diameter filter paper in a 120mm diameter glass petri dish, place 1g of sample on the filter paper, and store in a room with 65% RH (25℃). After 6 hours, measure the residue of the sample and calculate the amount of evaporation.

[0043] The non-volatile oil that is liquid at 25°C may be any oil other than component (B) that is used in ordinary cosmetics, and examples thereof include linear or branched hydrocarbon oils such as liquid paraffin, liquid isoparaffin, squalane, and squalene; monoester oils such as ethylhexyl paramethoxycinnamate, octyldodecyl myristate, isotridecyl isononanoate, and isononyl isononanoate; diester oils such as neopentyl glycol dicaprate, propylene glycol dicaprate, and diisostearyl malate; triester oils such as glyceryl tri-2-ethylhexanoate and glyceryl tri(caprylic acid / capric acid); tetraester oils such as dipentaerythrityl tetraisostearate; silicone oils such as dimethylpolysiloxane, caprylyl methicone, methylhydrogenpolysiloxane, and higher alcohol-modified organopolysiloxane; and fluorine oils such as fluoropolyether and perfluoroalkyl ether silicone. Among these, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied and improving the adhesion to the skin and the covering power for pores after application, it is preferable to include at least one or more oils selected from linear or branched hydrocarbon oils, monoester oils, diester oils, triester oils, tetraester oils and silicone oils, It is more preferable that the oil composition contains at least one or more oils selected from linear or branched hydrocarbon oils, monoester oils, diester oils, and silicone oils, and it is even more preferable that the oil composition contains at least one or more oils selected from branched hydrocarbon oils, monoester oils, diester oils, and silicone oils, and it is even more preferable that the oil composition contains at least one or more oils selected from liquid isoparaffin, ethylhexyl paramethoxycinnamate, caprylyl methicone, neopentyl glycol dicaprate, and propylene glycol dicaprate.

[0044] One or more types of non-volatile oils that are liquid at 25°C can be used, and the content is preferably 0.5 to 35% by mass, more preferably 2 to 23% by mass, and even more preferably 7 to 15% by mass in the total composition, from the viewpoints of reducing the slippery feeling of the water-in-oil emulsion composition on the skin when applied and improving the adhesion to the skin and the covering power for pores after application.

[0045] The emulsion composition of the present invention may further contain an oil agent that is solid or semi-solid at 25°C, which can reduce the slippery feeling of the emulsion composition on the skin when applied and improve the adhesion to the skin and the covering power for pores after application. "Solid or semi-solid at 25°C" means that the viscosity at 25°C is greater than 10,000 mPa·s. Here, the viscosity is measured using a B-type viscometer (TVB-10 model, manufactured by Toki Sangyo Co., Ltd.), rotor No. 4, 12 rpm, 60 seconds (however, for viscosity of 50,000 mmPa·s or more, rotor No. 4, 3 rpm, 60 seconds).

[0046] The oil agent that is solid at 25°C is not limited as long as it is one that is usually used in cosmetics, and ester wax, hydrocarbon wax, etc. can be used. Examples of oil agents that are solid at 25°C and contain ester wax include animal wax, vegetable wax, etc., and examples of oil agents that are solid at 25°C and contain hydrocarbon wax include mineral wax, synthetic wax, etc. More specifically, examples of oil agents that are solid at 25°C and contain ester wax include vegetable waxes such as shea butter, rice bran wax, carnauba wax, candelilla wax, and beeswax, and examples of oil agents that are solid at 25°C and contain hydrocarbon wax include ceresin, paraffin wax, microcrystalline wax, polyethylene wax, and polyolefin wax.

[0047] Semi-solid oils at 25°C include cholesterol derivatives such as cholesteryl isostearate, cholesteryl hydroxystearate, cholesteryl macadamia nut oil fatty acid, and N-lauroyl-L-glutamic acid di(cholesteryl, behenyl, octyldodecyl); N-lauroyl-L-glutamic acid di(phytosteryl, behenyl, 2-octyldodecyl), N-lauroyl-L-glutamic acid di(phytosteryl, 2-octyldodecyl), isostearic acid phytosteryl, oleic acid phytosteryl, dimer dilinoleic acid (phytosteryl) Phytosterol derivatives such as dipentaerythritol hexaoxystearate, dipentaerythritol rosinate, etc.; triglycerides such as caprylic / capric / myristic / stearic acid triglyceride, glyceryl trilanolinate, and glyceryl tribehenate; partially hydrogenated triglycerides such as hardened oils, lanolin, soft lanolin fatty acids, lanosterol derivatives, petrolatum, and hydrogenated castor oil dimer dilinoleate.

[0048] The oil agent which is solid or semi-solid at 25°C preferably contains at least one or more selected from vegetable waxes, cholesterol derivatives, phytosterol derivatives, triglycerides, lanolin, petrolatum, and hydrogenated castor oil dimer dilinoleate, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin and the covering power for pores after application, and reducing the sticky feeling, It is more preferable that the composition contains at least one or more selected from vegetable waxes, cholesterol derivatives, phytosterol derivatives, triglycerides, lanolin, and petrolatum, and it is even more preferable that the composition contains at least one or more selected from vegetable waxes, phytosterol derivatives, and triglycerides, and it is even more preferable that the composition contains triglycerides.

[0049] One or more types of oil agents that are solid or semi-solid at 25°C can be used, and the content is preferably 0.05 to 8 mass% of the total composition, more preferably 0.06 to 5 mass%, and even more preferably 0.07 to 3 mass%, from the viewpoints of reducing the slippery feeling of the emulsion composition on the skin when applied, improving the adhesion to the skin and the covering power for pores after application, and reducing a sticky feeling.

[0050] In addition to the above-mentioned components, the emulsion composition of the present invention may contain components that are usually used in cosmetics, for example, extender pigments such as talc, powders other than those mentioned above, polymeric compounds, antioxidants, fragrances, preservatives, pH adjusters, blood circulation promoters, cooling agents, antiperspirants, germicides, skin activators, moisturizers, and cooling agents.

[0051] The emulsion composition of the present invention can be produced according to a conventional method, and can be any of a water-in-oil type emulsion composition, an oil-in-water type emulsion composition, etc. Also, it can be in the form of a liquid, emulsion, paste, cream, gel, solid, etc., with the paste, cream, and solid forms being preferred.

[0052] The emulsion composition of the present invention can be used as a water-in-oil emulsion cosmetic, and can be used as makeup cosmetics such as a makeup base, foundation, concealer, blusher, eye shadow, mascara, eyeliner, eyebrow, overcoat agent, and lipstick; ultraviolet protection cosmetics such as a sunscreen lotion and a sunscreen cream; etc. It is suitable as a makeup cosmetic. EXAMPLES

[0053] Examples 1 to 14 and Comparative Example 1 Water-in-oil emulsion cosmetics having the compositions shown in Tables 1 and 2 were prepared and evaluated for the lack of slippery feeling when applied, the adhesion to the skin after application, the ability to cover pores, and the lack of stickiness on the skin after application. The results are shown in Tables 1 and 2.

[0054] (Production method) Components (A), (B) and other oily components were heated and stirred at 80°C to prepare an oil phase mixture, and a powder phase containing component (C) that had been previously ground and mixed was added to the oil phase mixture and mixed using a homomixer. Then, an aqueous phase heated to 80°C was added and mixed, followed by cooling to room temperature to obtain a water-in-oil emulsion cosmetic.

[0055] (Evaluation method) (1) No slippery feeling when applied: Three expert evaluators took 0.3g of each water-in-oil emulsion cosmetic on their fingers and applied it to the face. They then evaluated the lack of slippery feeling during application according to the following criteria. The results were shown as the total score given by the three expert evaluators. The "slippery feeling" refers to the feeling that when a water-in-oil emulsion cosmetic is applied to the face using a fingertip or the like, it continues to spread on the skin as if a liquid oil were being spread, and there is no real feeling that the water-in-oil emulsion cosmetic is spreading while adhering to the skin. 5; There is clearly no sense of slipping upwards. 4: I feel like there is almost no slippage. 3: I don't feel like it slides around much. 2: I feel like there is a slight slippery sensation. 1: I can clearly feel a sense of slipping upwards.

[0056] (2) Skin adhesion after application: Three expert evaluators took 0.3g of each water-in-oil emulsion cosmetic on their fingers, applied it to their face, and then evaluated the adhesion of the product to the skin after application according to the following criteria. The results were shown as the total score given by the three expert evaluators. The term "tight adhesion" refers to the fact that the water-in-oil emulsion composition on the skin after application follows the movement of the skin and does not come off from the surface of the skin even when the facial skin is moved, for example by changing facial expressions, and that the composition adheres firmly to the skin without gathering in parts due to large or small wrinkles. 5; I can clearly feel the adhesion. 4; I feel like it adheres very well. 3; I feel a sense of closeness. 2: I don't feel like it adheres well. 1: There is clearly no sense of adhesion.

[0057] (3) Pore coverage: Three expert evaluators took 0.3g of each water-in-oil emulsion cosmetic onto their fingers, applied it to the face, spread it, and then evaluated its pore-covering ability according to the following criteria. The results were shown as the total score given by the three expert evaluators. 5;I feel like my pores are clearly hidden. 4;I feel like my pores are hidden. 3;I feel like my pores are almost completely hidden. 2;I feel like my pores aren't hidden very well. 1; I feel like my pores are not clearly hidden.

[0058] (4) No stickiness on the skin after application: Three expert evaluators took 0.3g of each water-in-oil emulsion cosmetic on their fingers, applied it to the face, then touched the skin after application and evaluated the lack of stickiness according to the following criteria. The results are shown as the total score of the three expert evaluators. 5;There is no noticeable stickiness. 4;It feels almost non-sticky. 3;It doesn't feel too sticky. 2: It feels a little sticky. 1: There is a noticeable stickiness.

[0059] [Table 1]

[0060] [Table 2]

[0061] *1: Sorbitan monoisostearate: Croda, Span 120, *2: Polyoxyethylene-methylpolysiloxane copolymer: Shin-Etsu Chemical Co., Ltd., KF-6017, *3: Methylphenylpolysiloxane: Dow Toray, DOWSIL TM FZ-209, *4: Phenyl trimethicone: Dow Toray, DOWSIL SH556 FLUID, *5: Diphenyl dimethicone: Shin-Etsu Chemical Co., Ltd., KF-54P, *6: Trimethylpentaphenyltrisiloxane: DOWSILtm PH-1555 HRI Cosmetic Fluid, *7: Dimethylpolysiloxane (2cs): Shin-Etsu Chemical Co., Ltd., KF-96L-2cs, *8: Light liquid isoparaffin: NOF Corp., Pearleem 4, *9: 2-Ethylhexyl paramethoxycinnamate: BASF, Uvinal MC80, *10: (Acrylates / polytrimethylsiloxy methacrylate) copolymer-dimethicone mixture (40% by mass dimethylpolysiloxane (2cs) solution): manufactured by Dow Toray, DOWSIL FA 4003 DM Silicone Acrylate, *11: Glyceryl tribehenate: Croda, Synchrowax HR-C, *12: Dimethicone-Stearoyl Glutamate Disodium Complex Treated Titanium Dioxide: SA / NAI-TR-10 MIBRID COLOR POWDER, manufactured by Miyoshi Chemical Industries, Ltd. *13: Hydrogen dimethicone-treated titanium dioxide: Daito Kasei Kogyo Co., Ltd., SI01-2 TIO2 MT-500SA, *14: Dimethicone / Stearoyl Glutamate 2Na Complex Treated Bengala: Miyoshi Chemicals Co., Ltd., SA / NAI-R-10 MIBRID COLOR POWDER, *15: Dimethicone / Stearoyl Glutamate 2Na Complex Treated Yellow Iron Oxide: SA / NAI-Y-10 MIBRID COLOR POWDER, manufactured by Miyoshi Chemical Industries, Ltd. *16: Dimethicone / Stearoyl Glutamate 2Na composite treated black iron oxide: MIYOSHI KASEI CO., LTD., SA / NAI-B-10 MIBRID COLOR POWDER, *17: Dimethicone-Stearoyl Glutamate Disodium Complex Treated Talc: SA / NAI-TA-46R MIBRID COLOR POWDER, manufactured by Miyoshi Chemical Industries, Ltd. *18: Dimethicone-treated silica: Miyoshi Chemicals, A-SB-300 (7%), *19: Calcium carbonate: Omi Chemical Industry Co., Ltd., light calcium carbonate (volume average particle size 7.5 μm, spindle shape, aspect ratio 1.9) *20: Calcium carbonate: Sakai Chemical Industry Co., Ltd., SCS-M5, (volume average particle size 5 μm, spherical, aspect ratio 1) *21: Magnesium carbonate: Kyowa Chemical Industry Co., Ltd., heavy magnesium carbonate (volume average particle size 16 μm, plate-like, aspect ratio 26)

Claims

1. The following components (A), (B), (C), (D) and (E): (A) at least one or more lipophilic nonionic surfactants selected from sorbitan fatty acid esters and silicone surfactants; (B) phenyl silicone oil, (C) carbonate, (D) water; (E) Color pigment Contains A water-in-oil emulsion composition, in which the mass ratio (C) / (E) of component (C) to component (E) is 0.05 to 1.

2. 2. The water-in-oil emulsion composition according to claim 1, wherein the content of component (B) is 0.5 to 10% by mass.

3. 3. The water-in-oil emulsion composition according to claim 1, wherein the content of component (C) is 0.1 to 10% by mass.

4. 4. The emulsion composition according to claim 1, wherein a mass ratio (B) / (C) of the component (B) to the component (C) is 0.1 to 80.

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